In which of the following situations would you expect group selection to have the most influence on the course of evolutionary events?
A. Low between-group competition and low within-group competition
B. Low between-group competition and high within-group competition.
C. High between-group competition and low within-group competition.
D. High between-group competition and high within-group competition.
Answer: C. High between-group competition and low within-group competition.
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Prokaryotic cells are smaller than eukaryotic cells. What is a plausible explanation?
A. Prokaryotic cell walls limit their cell growth. B. Eukaryotes are immobile, allowing them to grow larger. C. Prokaryotes lack the genetic material needed for protein synthesis. D. Eukaryotes have compartmentalization, which allows for specialization. E. Prokaryotes have more diverse energy sources.
Which of the following tissues would likely be found in the small intestine?
A) cardiac muscle B) nervous tissue C) bone tissue D) tendons
Which of the following is a typical example of mRNA editing?
A. deamination of cytidine to thymine B. insertion of one or more A residues C. deletion of one or more U residues D. guanosine deaminated to inosine
Ringing or buzzing in the ears is called
a. otitis media. b. tinnitus. c. otitis externa. d. otitis interna. e. strabismus.